The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

Air quality remains a big concern in Los Angeles County, and not just for those nearby the Palisades and Eaton fires.

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

I n the current day we wake up to our air purifiers, smartphones warning us that the air quality is in the ‘very poor’ or ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

Several parts of southern California are currently under windblown dust and ash advisories as deadly wildfires continue to ...

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

The Oregon DEQ has issued an air quality advisory for parts of Oregon due to stagnant air trapping pollutants.